To add a video for Kalle Toivio / Triptyque Symphonique Improvisée sur deux Themes, improvisation on two themes by David Briggs for organ, just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Kalle Toivio / Triptyque Symphonique Improvisée sur deux Themes, improvisation on two themes by David Briggs for organ